William c



(No Model.)

W G. BROWN.

RAILROAD TRACK BOLT.

I No. 268,457. V Patented Dec. 5; 1882;

LII.

i ders-c.

To all whom it may concern will now be'more fully set out and explained.

V overlapping the joint to, as usual.

UNITED STATES PATENT OFFICE.

WILLIAM 0. BROWN, or LOGAN, ASSIGNOR. on QNE-HALF TO J. F. WHEELER,

- on MONDAY, OHIO.

RAILROAD-TRACK BOLT.

SPECIFICATION forming part of Letters Patent No. 268,457, dated December 5, 1882. Application filed August 10, 1881. (No model.)

Beit known that I, WILLIAM 0. BROWN, a citizen of the United States of America, residing at Logan, in the county of Hocking and State of Ohio, have invented certain new and useful Improvements in Railroad-Track Bolts 5 and I do hereby declare the following to be a full, clear, and-exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Figure 1 is a perspective view, showing present device in useon a rail-joint. Fig. 2 is a plan of Fig. 1, partially in section 5 Fig. 3, a plan of oneof the bolts; Fig. .4, a perspective of one of the key-plates; Fig. 5, a vertical section on line x no, Fig. 2.

The object of this invention is to provide such means for tightening the bolts which hold the fish-plates of a rail-joint that said bolts may be not only made fast and sung, but also may be held in place against all ordinary use of the rails; and the novelty consists in the details of the construction and combination of the several parts used for this purpose, all as I In the accompanying drawings,AAdenote two rails butted together at a in the usual way in making a rail-track.

B are the fish-plates, one on each side, and

O are bolts, which pass through slots or openings in the rail and fish-plate, and are designed to secure the fish-plates in place. The locking devices consist of two wedge-shaped parts or pieces,D, adapted to be matchedface to face and moved on each other, as will be more fully explained hereinafter. One end of said bolt 0 has a head, 0, and the other--the shank being cut away somewhat-has shoul- The diameter of the end 0? of this bolt is so nearly equal to the diameter of the hole (1 of the wedges D that it can be easily thrustthrough it, While the width of the cutaway part c of the shank is so nearly equal to the width of the slot at, connecting with the hole at of the wedges D, that when said end has bolt can be put in this wedge or taken out is by. bringing the end 0 in conjunction with the hole 01, asabove described. The wedge D is of any desired size for the uses for which it is designed. It tapers sufficiently from its larger or thicker end to its smaller end to insure its having a wedge shape. In its face it has any desired number of grooves, d which may be semi cylindrical, or of any desired shape.

Where the fish-plates have been matched over the rail-joint, and one bolt 0 placed through them and one end of the rail, the wedges D are matched on each other, and the fastening completed by first putting end c of one bolt through the two holes (I, which now coincide, and then pushing along the plates (not allowing the bolt-shank to reach the end of slot cl) till the holes d come in proper relationto the ,head of the second bolt, when the second bolt is put through said holes. Then wedges can be driven upon each other, so that the bolts shall be secured rigidly tightin the slots. The grooves in the abutting faces of the wedge can be made to match at a proper point, and by inserting the key-bolt E into any of these, as nowshown in Fig. 1, the wedge-plates will be locked securely. v

If desired, holes (I may be made in the wedge at both ends of slot (1, and the wedges may be made for one bolt instead of two,the construction and operation of the parts being in that case, to all intents, the same as have been above described.

It is obvious that one wedge can he made to act in this general way, and to this end the outer face of the fish-plate on this side may be grooved, so that the key can be thrust into a convenient seat, where the corresponding grooves in the fish-plate and wedge match; or the wedges may be made exactly alike and matched, and applied in pairs to each bolt, and thus secure the result above indicated in the same general way and manner I have above pointed out.

Having thus described my invention,what I consider new, and desire to secure by Letters 5 Patent, is

1. The joint-fastening consisting of the fishplate, necked bolts 0, and two tapered and slotted plates, D, having notches or grooves on their face, and the pin E, all substantially to in the manner shown and described.

2. As a new article of manufacture, a flat tapered plate provided with longitudinal slots enlarged at one or both ends, and with transverse grooves in one face, substantially as and for the purposes described.

1n testimony whereof laffix my signature in presence of two witnesses.

S. G. BEnNETr, F. A. MoOuNTocK. 

